at a walgreens in michigan. a gunman pulled the trigger of his gun three times, but his gun didn't go off. that's what the pharmacist pulled out his own gun while trying to call 911. >> i feared for my life and in self defense, i fired my weapon as i continued to move from him. >> no life was lost, no life was harmed, and nothing was stolen, so in that context, i think he was a hero. >> incredible. he does have a concealed weapons permit but didn't notify his supervis supervisor. he's suing walgreens for wrongful termination. >>> a litter of kittens could shine light on how to stop the aids virus from spreading. cells immune to f.i.v., feline immune virus. scientists injected a monkey virus and a fluorescent gene produced naturally in jelly fish. the combination built up a resistance factor in the animals. scientists hope the findings could lead to treatments and preventions in humans as well as cats. >>> henry joins us now from our comcast sportsnet newsroom. i think he'd be the best guy to watch a football game with. >> why? >> if your team is winning, he'd chest bump everyone. >> i don't kno
